# git rev-parse -q --verify a2aeaeabbc9a1fbfb22d23539ae315cf52f09a0a^{commit}
a2aeaeabbc9a1fbfb22d23539ae315cf52f09a0a
already have revision, skipping fetch
# git checkout -q -f -B kisskb a2aeaeabbc9a1fbfb22d23539ae315cf52f09a0a
# git clean -qxdf
# < git log -1
# commit a2aeaeabbc9a1fbfb22d23539ae315cf52f09a0a
# Merge: f66062c7491b 35b6b28e6998
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Fri Dec 3 10:50:14 2021 -0800
# 
#     Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
#     
#     Pull arm64 fixes from Will Deacon:
#      "Three arm64 fixes for -rc4.
#     
#       One of them is just a trivial documentation fix, whereas the other two
#       address a warning in the kexec code and a crash in ftrace on systems
#       implementing BTI.
#     
#       The latter patch has a couple of ugly ifdefs which Mark plans to clean
#       up separately, but as-is the patch is straightforward for backporting
#       to stable kernels.
#     
#       Summary:
#     
#        - Add missing BTI landing instructions to the ftrace*_caller
#          trampolines
#     
#        - Fix kexec() WARN when DEBUG_VIRTUAL is enabled
#     
#        - Fix PAC documentation by removing stale references to compiler
#          flags"
#     
#     * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
#       arm64: ftrace: add missing BTIs
#       arm64: kexec: use __pa_symbol(empty_zero_page)
#       arm64: update PAC description for kernel
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-ld --version
# < git log --format=%s --max-count=1 a2aeaeabbc9a1fbfb22d23539ae315cf52f09a0a
# < make -s -j 32 ARCH=arm64 O=/kisskb/build/linus_arm64-allmodconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  allmodconfig
# < make -s -j 32 ARCH=arm64 O=/kisskb/build/linus_arm64-allmodconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  help
# make -s -j 32 ARCH=arm64 O=/kisskb/build/linus_arm64-allmodconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  olddefconfig
# make -s -j 32 ARCH=arm64 O=/kisskb/build/linus_arm64-allmodconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  
Completed OK
# rm -rf /kisskb/build/linus_arm64-allmodconfig_arm64-gcc8
# Build took: 0:19:26.666209